silly question - C / C++ / MFC Discussion Boards

Ravi Bhavnani25-May-02 5:47

25-May-02 5:47

The CP community will be glad to help you have a specific question about this. But we'd be doing you a disservice if we simply gave you the solutions to these problems.

/ravi

"There is always one more bug..."
http://www.ravib.com
ravib@ravib.com

Re: Help Needed

pnpfriend25-May-02 5:55

pnpfriend

25-May-02 5:55

what do you want? to print the diamond shape? if so use following code..

for(int i=0;i<10;i++)<br />
{<br />
  if(i%2==1)<br />
    for(int j=0;j<i;j++)<br />
      cout<<"* ";<br />
    cout<<endl;<br />
}<br />
for(int k = 10;k>0;k--)<br />
{<br />
  if(k%2 == 1)<br />
    for(int j=k;j>0;j--)<br />
      cout<<"* ";<br />
    cout<<endl;<br />
} <br />

Re: Help Needed

Renjith Ramachandran25-May-02 6:48

Renjith Ramachandran

25-May-02 6:48

i think u need it in c++

include Header files here

void main()
{

int nTotal,nCOunt;

cout<<"How much rows ?";cin>>nTotal;
while(!(nTotal%2))
{
cout<<"Enter Odd No :";
cin>>nTotal;
}

int i,j,k,l;

for(i=1;i<=nTotal;i+=2)
{
cout<<"\n"; //as u like the \n here hahah..
for(j=1;j<=i;j++)
cout<<"* ";

}

for(k=(i-4);k>=1;k-=2)
{
cout<<"\n";
for(l=1;l<=k;l++)
cout<<"* ";

}
}//end main

TRY IT NOW
RENJITH

HI FRIEND I THINK I GAVE THE SOLUTION AS U ASK ...
R U SATISFIED? NEED ANY MORE HELP??

R_Renjith The True CP ian

Re: Help Needed

Mazdak25-May-02 7:04

Mazdak

25-May-02 7:04

You miss headers because they are like html tags.When you send the message check the Display this message as-is (no HTML) check box then you can see headers too. Smile | :)

Mazy

"The more I search, the more my need
For you,
The more I bless, the more I bleed
For you."The Outlaw Torn-Metallica

Re: Help Needed

Renjith Ramachandran25-May-02 7:29

Renjith Ramachandran

25-May-02 7:29

hahaah

# include<iostream.h>
#include<conio.h>
#include<time.h> hahahahaaha i i can...!!! thankz...

R_Renjith The True CP ian

Re: Help Needed

Michael Dunn25-May-02 8:39

Michael Dunn

25-May-02 8:39

Homework questions are OK here, but we aren't going to do your work for you. Get started on the code, and when you get stuck, ask a specific question and post your code along with it.

--Mike--
Just released - RightClick-Encrypt - Adds fast & easy file encryption to Explorer
Like the Google toolbar? Then check out UltraBar, with more features & customizable search engines!
My really out-of-date homepage
Sonork - 100.10414 AcidHelm

Re: Help Needed

tiaozi25-May-02 22:40

tiaozi

25-May-02 22:40

i remembered that i do this title when i start study TC2.0..

Frown | :(

.

I'm a beginner of VC++...

silly question

pnpfriend25-May-02 4:58

pnpfriend

25-May-02 4:58

i'm so sorry to ask the silly question..
i creat empty console application.
i have one header file that contain class declaration
another one cpp file that is class definition
the last cpp file is main file.
in main.cpp, StartJob is unknown.. don't know why. in logic i think that shouldn't be
an error.

<br />
//startjob.h<br />
class StartJob<br />
{<br />
  public:<br />
  StartJob();<br />
void GetStartJob();<br />
}<br />
<br />
//startjob.cpp<br />
#include "startjob.h"<br />
<br />
StartJob::StartJob(){}<br />
StartJob::GetStartJob()<br />
{<br />
 cout<<"Start job now"<br />
}<br />
<br />
// startjob is unknow in main... why is that?<br />
// main.cpp<br />
#include <iostream.h><br />
#include "Startjob.cpp"<br />
#include "startjob.h"<br />
<br />
void main()<br />
{<br />
  StartJob ajob;  //error don't know StartJob<br />
  ajob.GetStartJob();<br />
<br />
}<br />
<br />
<br />

Re: silly question

Stan Shannon25-May-02 5:22

Stan Shannon

25-May-02 5:22

You do not need to include the implementation file:

Remove:
#include "Startjob.cpp"

That file is linked during compilation. You only need the header file (#include "startjob.h")

Also, I don't know if this is a typo or not, but you need a semi-colon after your class declaration in the header file:

//startjob.h
class StartJob
{
public:
StartJob();
void GetStartJob();
}; // semi-colon.

"There's a slew of slip 'twixt cup and lip"

Re: silly question

pnpfriend25-May-02 6:23

pnpfriend

25-May-02 6:23

no.. no typo and i tried several ways.. it is not like borland c++. can't create a project just like that.
i don't know why i can't create object of startjob class
evenafter i tried created the new project and call the different name, the same problem is still remain.

dont' know how to fix it.

Re: silly question

Stan Shannon25-May-02 6:36

Stan Shannon

25-May-02 6:36

Can you post the actual error you are receiving?

"There's a slew of slip 'twixt cup and lip"

Re: silly question

pnpfriend25-May-02 8:56

pnpfriend

25-May-02 8:56

s.cpp is a main() method
k is class name

<br />
<br />
//k.h <br />
//class k<br />
class k<br />
{<br />
public:<br />
k(){ cout<<"hi, how are you?\n";<br />
};<br />
<br />
//s.cpp, main method<br />
#include "k.h"<br />
<br />
void main()<br />
{<br />
k aclass;<br />
<br />
}<br />
<br />
//error<br />
s.cpp<br />
E:\s\s.cpp(8) : error C2065: 'k' : undeclared identifier<br />
E:\s\s.cpp(8) : error C2146: syntax error : missing ';' before identifier 'aclass'<br />
E:\s\s.cpp(8) : error C2065: 'aclass' : undeclared identifier<br />
Error executing cl.exe.<br />

Re: silly question

PJ Arends25-May-02 9:46

PJ Arends

25-May-02 9:46

//k.h
//class k
class k
{
public:
k(){ cout<<"hi, how are you?\n"; } // need closing brace
};

//s.cpp, main method
#include "k.h"

void main()
{
k aclass;

}

---
CPUA 0x5041

Sonork 100.11743 Chicken Little

Within you lies the power for good - Use it!

Re: silly question

pnpfriend26-May-02 4:28

pnpfriend

26-May-02 4:28

i found it
the problem is on including a header.. i got the case problem.

#include "job.h"
#include <iostream.h>
#include <fstream.h>
#include <Afx.h> // it's <afx.h> not <Afx.h>

now everything fine.. thanks

Re: silly question

pnpfriend26-May-02 4:29

pnpfriend

26-May-02 4:29

i found it
the problem is on including a header.. i got the case problem.

#include "job.h"
#include < iostream.h >
#include < fstream.h >
#include < Afx.h > // it's < afx.h > not < Afx.h >

now everything fine.. thanks

Create Edit Control

laphijia25-May-02 4:23

laphijia

25-May-02 4:23

CMyForm* prova;
prova = new CMyForm;
prova->m_edit.SetWindowText("ciao");
delete prova;

This doesn't work.

And the error is:

void CWnd::SetWindowText(LPCTSTR lpszString)
{
ASSERT(::IsWindow(m_hWnd) || (m_pCtrlSite != NULL));

if (m_pCtrlSite == NULL)
::SetWindowText(m_hWnd, lpszString);
else
m_pCtrlSite->SetWindowText(lpszString);
}

Because as Nish said
That won't work. The edit control has not been created yet!!!

So here comes my question:

How I create an edit control on another form so that I can use functions of it from other frames?

"Nelle cose del mondo non e' il sapere ma il volere che puo'."

Re: Create Edit Control

Martin Speiser25-May-02 5:18

Martin Speiser

25-May-02 5:18

You need to call Create or CreateWindow, too. Sorry, I'm too lazy to put in the MSDN CD currently Smile | :)

It's one of these functions.

What you are doing is creating the class with new, but not the window which is encapsulated. This requires a second step.

Martin

NTFS

Mazdak25-May-02 3:18

Mazdak

25-May-02 3:18

How can I understand if a drive is NTFS or FAT32 in my program?

Mazy

"The more I search, the more my need
For you,
The more I bless, the more I bleed
For you."The Outlaw Torn-Metallica

Re: NTFS

redeemer25-May-02 3:32

redeemer

25-May-02 3:32

NTSF:

template "Boot Sector NTFS"

// Template by Paul Mullen, pcguru@the-answer.com
// last modified Jul 16, 2000

// To be applied to sector 0 of an NTFS-formatted
// logical drive or to the mirror copy of the boot
// sector, which will be located near the end of
// the partition.
// See Microsoft KB article Q153973, "Recovering NTFS boot Sector"
// http://support.microsoft.com/support/kb/articles/Q153/9/73.asp

description "Boot sector of an NTFS partition"
applies_to disk
sector-aligned

requires 0x00 "EB" // bytes 0 to 2 are
requires 0x02 "90" // JMP instruction
requires 0x03 "4E 54 46 53 20" // ID must be "NTFS"
requires 0x1FE "55 AA" // "magic" signature

begin
read-only hex 3 "JMP instruction" //00
char[8] "SystemID" //03
uint16 "Bytes per sector" //0B
uint8 "Sectors per cluster" //0D
uint16 "Reserved sectors" //0E
hex 3 "(always zero)" //10
read-only hex 2 "(unused)" //13
hex 1 "Media descriptor" //15
read-only hex 2 "(unused)" //16
uint16 "Sectors per track" //18
uint16 "Heads" //1A
uint32 "Hidden Sectors" //1C
read-only hex 4 "(unused)" //20
read-only hex 4 "(always 80 00 80 00)" //24
int64 "Total sectors" //28
move -8
hex 8 "Total sectors (hex)" //28
int64 "Start C# $MFT" //30
int64 "Start C# $MFTMirr" //38
uint32 "Clust per MFT rec" //40
uint32 "Clust per index block" //44
uint32 "Serial number (int)" //48
move -4
hex 4 "Serial number (hex)" //48
goto 0x1FE //boot load code follows
read-only hex 2 "Signature (55 AA)" //1FE
end

FAT32

template "Boot Sector FAT32"

// Template by Stefan Fleischmann
// To be applied to sector 0 of a FAT32-formatted logical drive.

description "BIOS parameter block (BPB) and more"
applies_to disk
sector-aligned

requires 0x02 "90"
requires 0x52 "46 41 54 33 32" // ="FAT32" at offset 52
requires 0x1FE "55 AA"

begin
read-only hex 3 "JMP instruction"
char[8] "OEM"

section "BIOS Parameter Block"
uint16 "Bytes per sector"
uint8 "Sectors per cluster"
uint16 "Reserved sectors"
uint8 "Number of FATs"
uint16 "Root entries (unused)"
uint16 "Sectors (on small volumes)"
hex 1 "Media descriptor (hex)"
uint16 "Sectors per FAT (small vol.)"
uint16 "Sectors per track"
uint16 "Heads"
uint32 "Hidden sectors"
uint32 "Sectors (on large volumes)"

section "FAT32 Section"
uint32 "Sectors per FAT"
uint16 "Flags"
uint16 "Version"
uint32 "Root dir 1st cluster"
uint16 "FSInfo sector"
uint16 "Backup boot sector"
read-only hex 12 "(Reserved)"
endsection

hex 1 "BIOS drive (hex, HD=8x)"
read-only uint8 (Unused)
hex 1 "Ext. boot signature (29h)"
uint32 "Volume serial number (decimal)"
move -4
hex 4 "Volume serial number (hex)"
char[11] "Volume label"
char[8] "File system"
endsection

goto 0x1FE
read-only hex 2 "Signature (55 AA)"
end

Re: NTFS

Mazdak25-May-02 3:35

Mazdak

25-May-02 3:35

Whats that? I just need something like win32 functions. Confused | :confused:

Mazy

"The more I search, the more my need
For you,
The more I bless, the more I bleed
For you."The Outlaw Torn-Metallica

Re: NTFS

redeemer25-May-02 3:54

redeemer

25-May-02 3:54

It's how an NTFS and a FAT32 partition entrance looks like.

Re: NTFS

Mazdak25-May-02 4:06

Mazdak

25-May-02 4:06

Thank you. Smile | :)

Mazy

"The more I search, the more my need
For you,
The more I bless, the more I bleed
For you."The Outlaw Torn-Metallica

Re: NTFS

Renjith Ramachandran25-May-02 3:52

Renjith Ramachandran

25-May-02 3:52

Use GetVolumeInformation()

the Function params are

BOOL GetVolumeInformation(
LPCTSTR lpRootPathName, // root directory
LPTSTR lpVolumeNameBuffer, // volume name buffer
DWORD nVolumeNameSize, // length of name buffer
LPDWORD lpVolumeSerialNumber, // volume serial number
LPDWORD lpMaximumComponentLength, // maximum file name length
LPDWORD lpFileSystemFlags, // file system options
LPTSTR lpFileSystemNameBuffer, // file system name buffer
DWORD nFileSystemNameSize // length of file system name buffer
)

the out var lpFileSystemBuffer will give you the info abt
Type of ur partition(NTFS/FAT)

try it..

The TRUE CP -ian

Re: NTFS

Mazdak25-May-02 4:07

Mazdak

25-May-02 4:07

Thank you. Smile | :)

Mazy

"The more I search, the more my need
For you,
The more I bless, the more I bleed
For you."The Outlaw Torn-Metallica

Re: NTFS

Renjith Ramachandran25-May-02 5:45

Renjith Ramachandran

25-May-02 5:45

Always Welcome my friend...

R_Renjith The True CP ian

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